How do you do a good villain voice?

Play what the villain believes, not how evil they are. A villain who thinks they're right, and enjoys it, is far more interesting than one who growls.

How long should a villain monologue be for an audition?

Keep it to thirty to sixty seconds. That's long enough to show a change in tone, and short enough that a director listens to the end.

Can I use these monologues in my demo?

Yes. They're original and free to record, post and use.

Villain Monologues for Voice Actors (Free to Record)

Villain monologues are the most fun you can have in a recording booth. These are original villain monologues written for this page, free to record, post and use in your demo. The trick with every one: the villain thinks they're right. Play the belief, not the evil.

The calm one

Quiet, polite, never raises their voice. About 40 seconds.

"Sit down. Please. You've come a very long way to shout at me, and I'd hate for you to do it standing. You think I burned the city out of spite. I didn't. I burned it because it was already dying, and nobody else had the courage to let it. You'll hate me for a while. Then you'll build something better on the ashes, and you'll never thank me. That's fine. I didn't do it for thanks."

The showman

Big, theatrical, loving every second. About 30 seconds.

"Ladies, gentlemen, and soon-to-be-former heroes! Welcome to the grand finale! I want you to know I planned every moment of this. The trap, the timing, the lighting. Especially the lighting. Now, who'd like to go first? Don't all volunteer at once."

The fallen hero

Bitter, tired, with real hurt underneath. About 40 seconds.

"I used to stand where you're standing. Same sword, same speech, same stupid hope. I saved this kingdom four times. Do you know what they gave me? A statue. They put a statue in the square and forgot my name in a year. So no, I'm not the villain. I'm what happens to heroes when the story keeps going."

The cold strategist

Flat, precise, a little bored. About 25 seconds.

"You're angry. Good. Angry people are predictable. You'll go left, because your friend is on the left. You'll hesitate at the door, because you always hesitate. I've already won. You're just the last one to find out."

The unhinged one

Giggly, unpredictable, switches tone mid-sentence. About 30 seconds. Protect your voice: make the big moments with breath, not a scream.

"Oh, you found my little workshop! Do you like it? I made it myself. Well, the screaming made itself. No, no, don't run, we were just getting to the good part. The good part is my favorite part. Stay. STAY. ...Please? I'm so lonely."

Tips for villain reads

Find the reason. Decide what the villain wants and why they think they deserve it.
Go quieter than you think. A calm threat is scarier than a loud one, and easier on your voice.
Enjoy it. Villains who enjoy themselves are the ones people remember.
Vary it. Record the same monologue calm, then theatrical. Directors love seeing both.

You'll find more practice in free voice acting scripts, or find a real villain role in open voice acting jobs.